An Improved Authentication Mechanism Based on Dynamic Game Behavior in Cloud Computing

With the cloud computing model being widely recognized, the concerns about cloud computing security are growing. Traditional static security measures could not solve the security problems in dynamic cloud computing, because cloud computing is different from the traditional IT technology in service mode, operation mode, and exchange mode. This study proposed a user dynamic game behavior based authentication security control mechanism, which considers adequately the effective range of properties of each evidence, and provides the layer’s behavior authentication evidence. The method has the self binding, can make the system potentially untrusted users sending malicious requests probabilistic stability at a relatively low level, the method provides a strong basis for cloud service providers to take accurate measures. According to the characteristics of service model in cloud computing, it defines the user behavior authentication sets consisting of attributes, definition and classification, studies the user behavioral evidence collection, normalizes the process and learning method, and makes out the behavior certification strategies and management strategies, thus improving effectively the cloud computing security.